| # | Title | Name | Town/City | Region | Comment | Date |
|---|---|---|---|---|---|---|
| 1601 | Mr. | Anonymous | Pannipitiya, Colombo | Sri Lanka | N/G | Jul 20, 2020 |
| 1602 | Dr | Anonymous | N/G | Switzerland | N/G | Jul 20, 2020 |
| 1603 | Dr | Olivier PLANTARD | Nantes | France | N/G | Jul 20, 2020 |
| 1604 | Mr. | Tobias Theska | Tübingen | Germany | N/G | Jul 20, 2020 |
| 1605 | N/G | Anonymous | Pagsanjan, Laguna | Philippines | N/G | Jul 20, 2020 |
| 1606 | N/G | Tomáš Krejčí | Hluboké Mašůvky | Czech Republic | N/G | Jul 20, 2020 |
| 1607 | Mr | Virgiliu Marius Aurelian | Bucharest | Romania | N/G | Jul 20, 2020 |
| 1608 | N/G | Ľudmila Černecká | Banská Bystrica | Slovakia | N/G | Jul 20, 2020 |
| 1609 | Dr. | Ondřej Michálek | Brno | Czech Republic | N/G | Jul 20, 2020 |
| 1610 | Mr | Mario Toledo | Brescia | Italy | View | Jul 20, 2020 |
| 1611 | Dr. | Olavi Kurina | Tartu | Estonia | N/G | Jul 20, 2020 |
| 1612 | Dr. | Christian Bölling | Berlin | Germany | N/G | Jul 20, 2020 |
| 1613 | Dr. | Alberto Ballerio | Brescia | Italy | N/G | Jul 20, 2020 |
| 1614 | Dr. | Andrea Parimuchova | Košice | Slovakia | N/G | Jul 20, 2020 |
| 1615 | Dr. | J.-Sébastien Steyer | Paris | France | N/G | Jul 20, 2020 |
| 1616 | Prof.. Dr. | Ernst Heiss | Innsbruck | Austria | N/G | Jul 20, 2020 |
| 1617 | Dr | Anonymous | N/G | Belgium | N/G | Jul 20, 2020 |
| 1618 | Dr. | JEAN SANTOS | Aracaju | Brazil | N/G | Jul 20, 2020 |
| 1619 | Dr | Mehrez Gammoudi | Tunis | Tunisia | N/G | Jul 20, 2020 |
| 1620 | Mr. | Anonymous | Nijmegen | Netherlands | N/G | Jul 20, 2020 |
| 1621 | N/G | Fitra Arya Dwi Nugraha | Padang | Indonesia | N/G | Jul 20, 2020 |
| 1622 | Dr | Tadashi Ishikawa | Atsugi | Japan | N/G | Jul 20, 2020 |
| 1623 | Dr | Thomaz Rocha e Silva | São Paulo | Brazil | N/G | Jul 20, 2020 |
| 1624 | Dr | Guilherme Ribeiro | São Paulo | Brazil | N/G | Jul 20, 2020 |
| 1625 | Mr | Diego Cepeda | Madrid | Spain | N/G | Jul 20, 2020 |
| 1626 | Prof | Rosemarie Tedeschi | Grugliasco | Italy | N/G | Jul 20, 2020 |
| 1627 | Prof | Narducci Giorgio | Rome | Italy | N/G | Jul 20, 2020 |
| 1628 | Dr. | Ireneo L. Lit, Jr. | Los Baños, Laguna | Philippines | View | Jul 20, 2020 |
| 1629 | Dr. | Andreas Bick | Rostock | Germany | N/G | Jul 20, 2020 |
| 1630 | Mr | Christophe Hanot | orsay | France | N/G | Jul 20, 2020 |
| 1631 | Dr | Pilar Rodriguez | Bilbao, Box 644 | Spain | N/G | Jul 20, 2020 |
| 1632 | Dr | Elena Ivanova | Moscow | Russia | N/G | Jul 20, 2020 |
| 1633 | Dr. | Radek Michalko | Brno | Czech Republic | N/G | Jul 20, 2020 |
| 1634 | Dr. | Hui-Lin Han | Harbin | China | View | Jul 20, 2020 |
| 1635 | Dr. | Charles Oliver Coleman | Berlin | Germany | N/G | Jul 20, 2020 |
| 1636 | Dr. | Théo Léger | Berlin | Germany | N/G | Jul 20, 2020 |
| 1637 | Dr. | Evan Twomey | N/G | Germany | N/G | Jul 20, 2020 |
| 1638 | Mr. | Riou Mizuno | Kagawa | Japan | N/G | Jul 20, 2020 |
| 1639 | Dr | Nikolay Simov | Sofia | Bulgaria | N/G | Jul 20, 2020 |
| 1640 | Ms. | Anonymous | Dasmariñas City | Philippines | N/G | Jul 20, 2020 |
| 1641 | Dr. | Marcos Roca-Cusachs | Barcelona | Spain | N/G | Jul 20, 2020 |
| 1642 | DR | Raja BEN Ahmed | TUNIS | Tunisia | N/G | Jul 20, 2020 |
| 1643 | Dr | Anonymous | N/G | Italy | N/G | Jul 20, 2020 |
| 1644 | Dr. | Joël Bried | N/G | France | N/G | Jul 20, 2020 |
| 1645 | Dr. Budashkin Yuriy Ivano | Dr. Budashkin Dr. Budashkin | Pheodosia, Kurortnoye | Russia | View | Jul 20, 2020 |
| 1646 | Dr. | Anonymous | Puerto Madryn | Argentina | N/G | Jul 20, 2020 |
| 1647 | Dr | Alfonso Navas | Madrid | Spain | N/G | Jul 20, 2020 |
| 1648 | Ms | Jessica Ferreira | Rio de Janeiro | Brazil | N/G | Jul 20, 2020 |
| 1649 | mr | Lukasz Broda | Poznan | Poland | N/G | Jul 20, 2020 |
| 1650 | Dr | Katie Collins | London | UK | N/G | Jul 20, 2020 |
- S/C/P - State, County or Province
- Dates displayed in the signature list are based on UTC/GMT
- Anonymous signatures signify people who have chosen not to display their names publicly
- A comment in gray indicates that the signer has hidden their comment from public view